Please note that not all cases of disease or outbreaks are reported; some outbreaks may only be reported if they occur outside of the usual recognised risk area or season, or they have been reported in greater than usual numbers. See 'About Outbreaks' tab below for further detail.
For further information on red, amber and green alert categories, see About Outbreaks tab.
Occitanie
Île-de-France
Provence Alpes-Côte d’Azur
Chikungunya in France
As of 12 October 2026, a total of 162 locally acquired chikungunya cases have been reported during 2026 in Tarn, Lot, Gard (Occitanie), Gironde, Landes, Pyrenees-Atlantiques (Nouvelle-Aquitaine), Val-de-Marne (Île-de-France) and Var (Provence-Alpes-Cote d'Azur) in France. Please see our Topics in Brief article for further details on chikungunya.
As of 5 October 2026, a total of 146 locally acquired chikungunya cases have been reported during 2026 in Tarn, Lot (Occitanie), Gironde (Nouvelle-Aquitaine), Val-de-Marne (Île-de-France) and Var (Provence-Alpes-Cote d'Azur) in France. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 28 September 2026, 125 locally acquired cases of chikungunya have been identified in France, in Tarn, Lot, Gard (Occitanie), Gironde, Landes (Nouvelle-Aquitaine), Val-de-Marne (Ile-de-France) and Var (Provence-Alpes-Cote d'Azur). Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 23 September 2026, 90 autochthonous cases of chikungunya have been identified in France, in Tarn, Lot (Occitanie), Gironde, Landes (Nouvelle-Aquitaine) and Val-de-Marne (Ile-de-France). Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 9 September 2026, a total of 57 locally acquired chikungunya cases have been reported during 2026 in Tarn, Lot (Occitanie), Gironde (Nouvelle-Aquitaine) and Val-de-Marne (Île-de-France) in France. Please see our Topics in Brief article for further details on chikungunya.
Source: ECDCAs of 30 August 2026, a total of 46 locally acquired chikungunya cases have been reported during 2026 in Tarn, Lot (Occitanie), Gironde (Nouvelle-Aquitaine) and Val-de-Marne (Île-de-France) in France. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 26 August 2026, a total of 33 locally acquired chikungunya cases have been reported during 2026 in the Nouvelle-Aquitaine (Gironde), Occitanie (Tarn, Lot) and Île-de-France (Val-de-Marne) regions of France. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 17 August 2026, a total of 25 locally acquired chikungunya cases have been reported during 2026 in the Nouvelle-Aquitaine (Gironde) and Occitanie (Tarn) regions of France. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 10 August 2026, a total of 15 locally acquired chikungunya cases have been reported during 2026 in the Nouvelle-Aquitaine (Gironde) and Occitanie (Tarn) regions of France. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 3 August 2026, seven locally acquired cases of chikungunya have been reported in Tam (Occitanie) and Gironde (Nouvelle-Aquitaine). Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 27 July 2026, a locally acquired case of chikungunya has been reported in the Tam region, Occitanie. This is the first locally acquired chikungunya case in mainland France in 2026. Please see our Topics in Brief article for further details on chikungunya.
Source: StateMpox in Norway
A total of five clade I mpox cases have been reported in Norway in the past 12 months (October 2025 to September 2026). Both clade I and II mpox have been reported in Norway. Please see our Topics in Brief article for further details on mpox.
Mpox in Hungary
A total of 10 clade I mpox cases have been reported in Hungary in the past 12 months (October 2025 to September 2026). Clade I mpox was reported in Hungary for the first time in 2026. Clade II mpox has been reported in Hungary previously. Please see our Topics in Brief article for further details on mpox.
Mpox in Poland
A total of 21 clade I mpox cases have been reported in Poland in the past 12 months (October 2025 to September 2026). Clade Ib mpox has been reported among sequenced mpox cases in Poland. Please see our Topics in Brief article for further details on mpox.
West Nile virus in USA
As of 13 October, a total of 1,328 human cases of West Nile virus have been reported across 45 states in the United States. Of these, 1,004 cases were reported to be the neuroinvasive form. The highest number of cases were reported in California (310 cases), Arizona (95), and Texas (80 cases). Please see our Topics in Brief article for further details on West Nile virus.
As of 1 September 2026, a total of 407 human cases of West Nile virus have been reported across 40 states in the United States. Of these, 285 cases were reported to be the neuroinvasive form. The highest number of cases have been reported in Arizona (88 cases), California (66 cases) and Texas (46 cases). Please see our Topics in Brief article for further details on West Nile virus.
Source: CDCAs of 11 August 2026, a total of 181 human cases of West Nile virus have been reported across 30 states in the United States this year. Of these, 129 cases were reported to be the neuroinvasive form. The highest number of cases have been reported in Arizona (73 cases), Texas (23 cases), and California (18 cases). Please see our Topics in Brief article for further details on West Nile virus.
Source: StateChikungunya in French Guiana
As of 8 October 2026, a total of 2,065 confirmed chikungunya cases have been reported in French Guiana this year. Please see our Topics in Brief article for further details on chikungunya.
As of 2 August 2026, 1,418 confirmed chikungunya cases have been reported in French Guiana this year. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 29 May 2026, 513 cases of chikungunya have been confirmed in French Guiana during the current year. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 21 May 2026, a total of 249 laboratory confirmed chikungunya cases have been reported in French Guiana since the first locally acquired case was reported in January 2026. Please see our Topics in Brief article for further details on chikungunya.
Source: ECDCAs of 27 March 2026, 65 cases of chikungunya have been reported in French Guiana during 2026. The most affected region is the Western Littoral/West Shore area. Please see our Topics in Brief article for further details on chikungunya.
Source: StateAs of 5 February 2026, four locally acquired (autochthonous) cases of chikungunya have been reported from French Guiana. Investigations have not revealed any link between these cases, indicating that the virus is already circulating widely within the local mosquito population. These are the first locally acquired cases on French Guiana since 2017. Please see our Topics in Brief article for further details on chikungunya.
Source: StateOn 27 January 2026, local health authorities reported the first locally acquired (autochthonous) chikungunya case in French Guiana since 2014. The case tested positive on 21 January 2026 and had not recently travelled abroad. Please see our Topics in Brief article for further details on chikungunya.
Source: StateDengue in Italy
As of 8 October 2026, the Italian authorities confirmed the 68 locally acquired dengue cases reported for 2026 were in the following regions: Campania (2), Lazio (1), Lombardy (2), Puglia (20), Tuscany (36) and Veneto (7). Please see our Topics in Brief article for further details on dengue.
As of 7 October 2026, a total of 68 confirmed locally acquired dengue cases have been reported for 2026 in Italy. Please see our Topics in Brief article for further details on dengue.
Source: ECDCAs of 29 September 2026, a total of 59 confirmed locally acquired dengue cases have been reported for 2026 in Italy. Please see our Topics in Brief article for further details on dengue.
Source: StateAs of 22 September 2026, a total of 47 confirmed locally acquired dengue cases have been reported for 2026 in Italy. The cases have been reported in Puglia (13), Tuscany (31), Lombardy (2), Campania (1) regions of Italy. Please see our Topics in Brief article for further details on dengue.
Source: StateAs of 8 September 2026, a total of 24 confirmed locally acquired dengue cases have now been reported for 2026 in the Puglia and Tuscany regions of Italy. Please see our Topics in Brief article for further details on dengue.
Source: StateAs of 30 August 2026, a total of three confirmed locally acquired dengue cases have been reported during 2026 in the Puglia and Tuscany regions of Italy. Please see our Topics in Brief article for further details on dengue.
Source: StateDiphtheria in Niger
As of 27 September 2026, 949 suspected cases of diphtheria and 36 deaths have been reported in Niger from 50 of 72 health districts. Please see our Topics in Brief article for further details on diphtheria.
Dengue in Marshall Islands
As of 25 September 2026, 112 confirmed dengue cases have been reported in the Marshall Islands. DENV-1 has been detected. No dengue cases were reported in the Marshall Islands in 2025. Please see our Topics in Brief article for further details on dengue.
As of 24 August 2026, Marshall Island's Ministry of Health and Human Services has reported 17 confirmed dengue cases. DENV-1 has been confirmed in circulation. Please see our Topics in Brief article for further details on dengue.
Source: StatePneumonia, unknown origin in Russia
On 6 October 2026, following the reported death of a laboratory worker in Irkutsk, Russia, the Russian Federation health authorities informed the World Health Organisation (WHO) that no case of plague had been registered recently in Irkutsk Oblast. After testing negative for a number of high-threat pathogens, the patient was determined to have died from pneumonia of undetermined etiology. Based on the information provided, WHO has not identified evidence of ongoing transmission associated with this event. WHO will continue to monitor the situation and assess any potential public health implications as further information becomes available.
On 6 October 2026, following the reported death of a laboratory worker in Irkutsk, Russia, from pneumonia that is suspected to be pneumonic plague, the European Centre for Disease Prevention and Control is closely monitoring the situation. Based on the limited information currently available, there are no reports of secondary cases and no evidence of sustained human-to-human transmission that would cause further spread of the disease.
Source: ECDCNaTHNaC regularly review and update information on disease outbreaks and other health issues that may affect the UK traveller. You can search the information by disease or by country in our Outbreak Surveillance section.
The information comes from a wide variety of sources and can be used along with the Country Information section of our website where you will find recommendations on vaccines, malaria and other risks for each country (where relevant).
Please note that not all cases of disease or outbreaks are reported. In some countries, there may be limited surveillance and reporting processes in place so information can be difficult to obtain. Some diseases may only be reported if they occur outside of the usual recognised risk area or season, or they have been reported in greater than usual numbers. Outbreaks of those diseases included in the UK childhood vaccination programme are not usually reported unless the outbreak is unusual or unexpected.
The information presented in the disease surveillance reports is collated from a variety of sources, including government bodies, international organisations and the media. The verification status of each report is clearly indicated. Verified reports are confirmed by official sources. Some unverified reports are included to ensure timely dissemination of information and where possible we will try to substantiate these reports, although confirmation may not always be possible. Unverified reports may be subject to change, misreporting and may later prove to be unsubstantiated. They should not therefore be regarded as official.
Where available, a web link is provided to the original information source. We cannot accept responsibility for the sites to which it links, or for the information found on those sites. Linking to outside sites does not in any way imply endorsement of these sites. If you wish to use the following content for official purposes, please refer to the original sources of information.
Key to NaTHNaC alert level feature
LEVEL 1: GREEN |
Take usual precautions
|
Follow standard protective measures, as recommended for this destination, disease or situation. Be aware that advice may change and check for updates. |
|
LEVEL 2: AMBER |
Take extra precautions
|
Follow any additional precautions recommended. Be alert and check regularly for changes in advice about this ongoing situation. Advice may be relevant for all travellers or apply to a specific group of travellers. |
|
LEVEL 3: RED |
FCDO advise against travel
|
The Foreign, Commonwealth & Development Office (FCDO) advise against travel on health grounds. This may mean avoiding non-essential travel, or all travel, follow the FCDO advice for details. Please note we do not report on FCDO safety and security alerts. Travellers should check the FCDO travel advisories for their destination for this information. |
|
Alert categories are based on the situation at the time of publication. They will not be routinely updated unless outbreak information or a news item is updated.
Help us to adapt a Travel Health Resource for UK Travellers
Take part in a study that aims to help UK travellers make informed choices about Japanese encephalitis (JE) vaccination.
Find out moreGet TravelHealthPro on your site
Integrate features of TravelHealthPro into your own website with our API and widget
